How To Light A Furnace With Electronic Ignition References. Because an electric ignition does not need constant power the way a pilot light does, it contributes to energy savings. The pilot flame should light immediately.
Newer furnaces light with electronic ignition rather than a pilot light. If your furnace is equipped with an electronic igniter, you cannot light the furnace manually. Press the gas control knob down all the way and hold it in the depressed position.